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#1 2021-12-07 07:42:45

amordecosmos
Plugin Author
From: London (Hometown: Vancouver)
Registered: 2004-08-03
Posts: 88
Website

No preferences available.

This is a strange one.

I’m using Digital Ocean’s Managed database, which is MySQL 8.0.26.

I have installed TXP 4.8, 4.8.7, and 4.9-Dev and they all install fine – except the Preferences page. That page is blank except ‘ No preferences available.’

Put it in Debug mode you say? I can’t, because the page is blank.

But because I’m TXP familiar, I do go into the database and change it to debugging. No difference.

I have turned all plugins off.

Any clues?

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#2 2021-12-07 10:29:33

gaekwad
Server grease monkey
From: People's Republic of Cornwall
Registered: 2005-11-19
Posts: 3,931
GitHub

Re: No preferences available.

Does the browser console show anything useful?

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#3 2022-11-20 19:14:22

amordecosmos
Plugin Author
From: London (Hometown: Vancouver)
Registered: 2004-08-03
Posts: 88
Website

Re: No preferences available.

Almost a year to the day that I come back to this. I still don’t get what is wrong.

Installed 4.8.8 today
Digital Ocean’s Managed database, which is MySQL 8.0.28

And the result I get is the preferences tab is blank except “No preferences available.”

All other tabs work as expected.

The debugging info is:

User_Error "Unknown column '' in 'where clause'"
in /var/www/html/textpattern/lib/txplib_db.php at line 453.
adminErrorHandler()
textpattern/lib/txplib_db.php:453 trigger_error()
textpattern/lib/txplib_db.php:1191 safe_query()
textpattern/lib/txplib_db.php:1039 startRows()
textpattern/include/txp_prefs.php:204 safe_rows_start()
textpattern/include/txp_prefs.php:45 prefs_list()
textpattern/index.php:230 include()
Warning "mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given"
in /var/www/html/textpattern/lib/txplib_db.php at line 1239.
adminErrorHandler()
textpattern/lib/txplib_db.php:1239 mysqli_num_rows()
textpattern/include/txp_prefs.php:218 numRows()
textpattern/include/txp_prefs.php:45 prefs_list()
textpattern/index.php:230 include()

Anyone have a clue?

Update I went in an stuck an echo on the $q to see what the query was.

SELECT *, FIELD(event, 'site','admin','publish','feeds','comments','custom') AS sort_value FROM txp_prefs WHERE event != "" AND type IN(0, 1) AND (user_name = '' OR (user_name = 'admin' AND name NOT IN ( SELECT name FROM txp_prefs WHERE user_name = '' ))) ORDER BY sort_value = 0, sort_value, event, position

EDIT

Well. This is weird.

I edited txplib.db.php at line 434 to add these:

    $var = "event != ''";
           $q = str_replace('event != ""',$var,$q);

Now it works fine. I think somehow a double-quote instead of a single quote is sneaking into the query.

Last edited by amordecosmos (2022-11-20 21:26:21)

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#4 2022-11-20 21:23:59

jakob
Admin
From: Germany
Registered: 2005-01-20
Posts: 4,412
Website

Re: No preferences available.

If you try executing that SQL query directly in the database via phpMyAdmin or another database manager (adminer/Sequel Ace…) do you get any results?

When I try that query on a database on my local webserver, it outputs the relevant subset of the txp_prefs table.


TXP Builders – finely-crafted code, design and txp

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#5 2022-11-20 21:29:46

amordecosmos
Plugin Author
From: London (Hometown: Vancouver)
Registered: 2004-08-03
Posts: 88
Website

Re: No preferences available.

@Jakob

Have no idea why I never thought of running it on Sequel Ace previously. So I did. EXACT same error.

However, changing the quotes on event != “” results in success.

Is it me? Did I do this?

Update

My guess would be line 192 of txp_pref.php

$sql[] = 'event != "" AND type IN('.PREF_CORE.', '.PREF_PLUGIN.')';

Last edited by amordecosmos (2022-11-20 21:41:57)

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#6 2022-11-20 22:31:16

jakob
Admin
From: Germany
Registered: 2005-01-20
Posts: 4,412
Website

Re: No preferences available.

Glad you managed to locate the problem.

That said, I copy and pasted straight from your echoed query into Sequel Ace and it worked immediately. And the quoting in your code example in txp_pref.php looks correct to me too.

Wild guess: Could there be something in one of your prefs entries that includes a rogue quote?


TXP Builders – finely-crafted code, design and txp

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#7 2022-11-20 22:41:41

amordecosmos
Plugin Author
From: London (Hometown: Vancouver)
Registered: 2004-08-03
Posts: 88
Website

Re: No preferences available.

jakob wrote #334169:

Wild guess: Could there be something in one of your prefs entries that includes a rogue quote?

Maybe. But I think it may be a quirk of Digital Ocean’s Managed Databases.

1) I have never had this issue before on the many TXP sites I’ve installed
2) These are fresh installs. I didn’t have any prefs to conflict. And just now, I upgraded a 4.7 site to 4.8.8 and, having editing the txplib_pref file, it works fine.

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#8 2022-11-22 15:41:44

gaekwad
Server grease monkey
From: People's Republic of Cornwall
Registered: 2005-11-19
Posts: 3,931
GitHub

Re: No preferences available.

amordecosmos wrote #334170:

Maybe. But I think it may be a quirk of Digital Ocean’s Managed Databases.

I’ve made a note to spin up a DO managed database if / when we have our server hosting renewed with them, so another pair of eyes might be able to shed some light on why this happens.

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